Fire alarm trip mechanism



Dec. 28, 1948. J, R SA 'TQLE 2,457,499

FIRE ALARM TRIP MECHANISM Filed May 9, 1945 22 L'l i Inventor 25 I -Jas-qvfi sam ole Patented Dec. 28, 1948 UNITED STATES PATENT OFFICE FIRE ALARM TRIP MECHANISM Joseph Philip Santole, Waterbury, Conn.

Application May 9, 1945, Serial No. 592,767

2 Claims.

This invention relates to fire alarms and has for an object to provide an extremely simple and inexpensive means for signaling a fire.

Another object of my invention is to provide a very cheap device whereby a mechanical, or electrical, alarm means may be actuated.

A further object of the invention is to provide in an alarm actuating device an easily fusible member for holding the alarm out of action.

Other features and advantages will become more readily apparent from the following description and the accompanying illustrative drawings in which:

Figure 1 is a front elevational view of my fire alarm device,

Figure 2 is a side elevational view thereof,

Figure 3 is a top plan view,

Figure 4 is a perspective view of a broken away part of the device, certain elements being shown in changed position, and

Figure 5 is a view similar to Figure 2, illustrating a modification and certain parts being broken away.

In the accompanying drawings as above enumerated and in the following specification, like characters of reference indicate like parts throughout and in which I0, indicates my invention which consists of a bracket H, as shown, stamped from sheet metal; however, it may just as well be formed of wire. The top wall I2, of member H, is turned outwardly at right angles and is provided with an extension tongue I3, having a detent 14, therein upon which is hung a Lipowitz or other easily fusible member [5. To the lower end of this member is attached through the eye IS, a hook end ll, of a rod 18, which passes slidably through aligning openings l 9 and 20, in the offsets 2| and 22', of the member i I. Between the member 22, and a contact member 23, fixedly secured to the lower end 24, of member i8, is seated a coil spring 25, of a rather weak nature, which spring is adapted to normally force the member I8, down. An opening 26, is provided adjacent the upper end 21, of the member ll, whereby the bracket may be suspended upon a hook or nail.

The contact member 23, is also adapted for use as a lever for bearing down upon an alarm release arm (not shown) or the member 23, may contact and close an electric circuit (not shown).

In Figure 5, I show a modification of the invention in which a coil spring 28, is suspended from the bracket arm 29, of the member I I. To the lower end of spring 28, is suspended a fusible member 30, upon the arm 3|, of which is suspended a release member 32, which as in the former instance may release an alarm clock control or close an electric circuit.

The operation of the device is obvious, as overheating of any room or place where the device is standing will melt the member I5, resulting in giving an alarm of fire.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in shape, size and rearrangement of details and parts such as come within the purview of the invention claimed may be resorted to, in actual practice, if desired.

Having now described my invention that which I claim as new and desire to procure by Letters Patent is:

1. An alarm device comprising a support including an upper arm, an extension integral with said support, apertures in said extension and a fusible link having an eye at one end attached to said arm, an eye on the opposite end of said link, an alarm control link, a tongue at one end and a contact at the other end thereof, said tongue being received in said second mentioned eye and said control link being slidably received in said apertures, a spring encircling said control link engaging said extension and said contact and tensioning said control link.

2. An alarm device comprising a support having an integral extension and aligned apertures in said extension and an arm, a detent in said am, a fusible link having eyes at the terminal portions thereof, one of said eyes positioned in said detent, a control link having a hook slidably received in said apertures and attached to the other of said eyes, a contact secured to the shank of said link, a spring positioned around said link, engaging said extension and said contact, tensioning said control link.

JOSEPH PHILIP SANTOLE'.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,083,019 Leonard Dec. 30, 1913 1,446,554 Ellison Feb. 27, 1923 1,479,999 McDonald Jan. 8, 1924 1,629,102 Hicok May 17, 1927 1,682,634 Schwab Aug. 28, 1928 2,024,316 Thessing Dec. 17, 1935 2,311,206 Bulpitt Feb. 16, 1943 2,402,704 Woodworth June 25, 1946 

